People are unhappy because the world have stolen from them their realization that they are created in God’s image; that they are important and have a worth that no money nor the general public can deprive them of. Your worth is something that nobody can take away from you because nobody gave it to you. The world might try to make you feel worthless, they have no real effect on your worth as a person. Only God gives you your worth. If you feel self esteem is low, you can remedy it at the source by getting in touch with your soul.